1 files changed, 70 insertions, 0 deletions
diff --git a/src/common/expect.cpp b/src/common/expect.cpp
new file mode 100644
index 000000000..c86e23e95
--- /dev/null
+++ b/src/common/expect.cpp
@@ -0,0 +1,70 @@
+//
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without modification, are
+// permitted provided that the following conditions are met:
+//
+// 1. Redistributions of source code must retain the above copyright notice, this list of
+//    conditions and the following disclaimer.
+//
+// 2. Redistributions in binary form must reproduce the above copyright notice, this list
+//    of conditions and the following disclaimer in the documentation and/or other
+//    materials provided with the distribution.
+//
+// 3. Neither the name of the copyright holder nor the names of its contributors may be
+//    used to endorse or promote products derived from this software without specific
+//    prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
+// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include "expect.h"
+
+#include <easylogging++.h>
+#include <string>
+
+namespace detail
+{
+    namespace
+    {
+        std::string generate_error(const char* msg, const char* file, unsigned line)
+        {
+            std::string error_msg{};
+            if (msg)
+            {
+                error_msg.append(msg);
+                if (file)
+                    error_msg.append(" (");
+            }
+            if (file)
+            {
+                error_msg.append("thrown at ");
+
+                // remove path, get just filename + extension
+                char buff[256] = {0};
+                el::base::utils::File::buildBaseFilename(file, buff, sizeof(buff) - 1);
+                error_msg.append(buff);
+
+                error_msg.push_back(':');
+                error_msg.append(std::to_string(line));
+            }
+            if (msg && file)
+                error_msg.push_back(')');
+            return error_msg;
+        }
+    }
+
+    void expect::throw_(std::error_code ec, const char* msg, const char* file, unsigned line)
+    {
+        if (msg || file)
+            throw std::system_error{ec, generate_error(msg, file, line)};
+        throw std::system_error{ec};
+    }
+} // detail